Signaling device.



CHARLES 1vr. rnoo'ron, or DETROIT, MICHIGAN.

SIGNALING DEVICE.

Specification of Letters Patent.

Patented Nov. is, its;

Application filed July 10, 1914. Serial No. 850,130.

To all whom it may concern:

Be it known that I, CHARLES M. Pnoo'ron, a citizen of the United States, residing at Detroit, county of Wayne, State of Michigan, have invented a certain new and useful Improvement in Signaling Devices, and declare the following to be a full, clear, and

exact description of the same, such as will enable others skilled in the art to which it pertains to make and use the same, reference being hadto the accompanying drawings, which form a part of this specification.

This invention relates to signaling devices and' its object is a simple and inexpensive apparatus adapted for the projection of sound to a distance. The device is particularly adaptable for use as a signal for automobiles and, as is hereinafter shown, may be mechanically or electrically operated. A further object of the invention is a device of the character stated in which a tone producing element is utilized in the production of sound inclosed with a soundbox or case having an outlet provided with an amplifying horn for the projection of the sound in the desired direction, and another object of the invention is a sound-box having a tone producing element therein, which box is shielded from the influence of vibrations of a different nature or other amplitudes whereby the projected sound is clear and of an even tone. I accomplish these and other objects by means of devices hereinafter more fully described and claimed. the preferred form and arrangement being shown in the accompanying drawino: which is a longitudinal section of the device showing the tone producing element and the striking means therefor in elevation.

Similar characters refer to similar parts throughout the drawing and specification.

1 indicates a sound-box which may be of an desired form but preferablv substantially round in cross-section having an opening 2 at the forward end thereof through which the sound from the interior is to be projected, and to this aperture isapplied the am lif ing horn 3 of the usual well known type for this purpose. The box 1 and ampliIying horn 3 may be formed integrally, the box forming an enlargement at the base of the horn, or the box may be, provided with a short neck 30 to which the horn is secured. The box is preferably formed with an open end having a circumferential flange 4:, and across this end is secured a disk 5 providing a support for a bell or gong 6 extending at right angles thereto into the box. The disk or plate 5 is apertured at 7 through which projects an extension 8 of the armature 9 of the electromagnets 10,the extension 8 being provided with a ball hammerll for striking the gong. The-electro-magnet 10 is inclosed with a casing 12 having a flange 13 corresponding with the flange 4 of the sound-box and between the said flanges may be conveniently secured the plate or disk 5 heretofore mentioned. The electro-magnet may be of any well known form adaptable for the purpose and the casing is provided with two bind ing screws 14 and 15 electrically connected in the usual manner with the magnet coils. To the outer end of these binding posts are secured the wires 18 and 19 connected with any convenient source of current, as a bat tery, and in which line may be placed a switch 20 operable at will for controlling the flow of current through the magnetcoils.

U on a flow of current through the magnet coils, the armature 9 is rapidly vibrated causing the hammer 11 to strike the gong 6 in a rapid manner and, by means of the sound-box and amplifying horn, the sound projected is substantially continuous having more nearly the quality of a Whistle than that emanating from a gong rapidly struck in the open air. 0

The gong here shown is of a particular type but may be of any desired form or tone, or a tone producing element other than a gong may be utilized, as a triangle or other resonant device, preferably'having a musical tone when struck.

While I have shown and described an electro-magnet for use in striking the resonant element, mechanically operated appliances may be utilized for the same purpose without departing from the spirit of this invention, and while the means for striking the gong may be placed within the soundbox, in which event it should be shielded, it is preferable to place such mechanism in a separate case either at the rear of the sound-box as shown, or in other convenient position as may be desired. By thus separately inclosing the resonant element no sound waves are projected except those emanating from said element.

'- ni'sm, the box and easing Having thus briefly described my invention, what I claim and desire to secure by Letters Patent of. the United States 1s 1. A signaling device'comprising a sound box or chamber, a horn providing the. sole outlet for sound therefrom, asound' pro duc ng, element. mounted wlthm the box,

mechanism-1 foraotiiatiiig the soundprodiic gong within the box mechanism including a striker for striking the gong, a detachable casing supporting the mechaism, a partition wall providing the sole support for the gong, the striker extending through the wall and the partition being secured between the sound box and the casing.

3. A signaling device comprising a sound chamber substantially cylindrical in cross section open at the rear end and. having an openiiig of con'iparatively small diameter at the forward end, a plate forming a closure for the rear end, an amplifying horn inclosing said opening at the forward end, a gong 111 said chambers supported solely by the said plate, mechanism including a striker-for strikingthe gong, and a casing inclosing said mechanisms'upported by the sound, chamber, the said plate being aper tured and the striker extending through the aperture.- 7

' In testimony whereof, I sign this speei- 1 fication; in the presence of twowitnesses H CHARLES M; PROCTOR. Witnesses:

CHARLES E WISNER,

RioHARD ALSPAS;

Copies of this patent may be obtained for five .eents eaelnpi addressing, the dommi'ssioner of Patents, washingtomli. 0. 

